Steam-heating system.



I J. E. -WARD' STZEAM HEATING SYSTEM.

AEPLICATIONI'ILBD 1101721011911.

Patented June 24, 1913.

jmmmom UNITED STATES PATENT orr os.

JOHN E. WARD, OF NEW YORK, N. Y., ASSIGNOR TO STANDARD HEAT ANDVENTILATION COMPANY, INC., A CORPORATION OF NEW YORK.

STEAM-HEATING SYSTEM.

Specification of Letters Patent.

Patented Jilin- 21, 1.913.

Application filed November 10, 1911. Serial No. 659,509.

To all nhom-z'zfmajij concern: I

Be 1t known that I, JOHN E. WARD, a

citizen of t'hedllnited States, and a resident of the borough ofManhattan of the city of New York; in the county and State of New York,have invented certain new and useful Improvements in Steam-HeatmgSystems,

' of which the following is a specification.

The invention relates particularly to apparatus for use in heatingrailway cars l u n where the steam is ordinarily supplied from theengine. ,In systems of this kind where a thermostatic device is used tocontrol the supply of steam to the radiator circuit great difliculty isencountered due to the fact'that the condensed steam in the radiatorpipes frequently spills into the thermostatic chamber in such mannerthatthe hot watencan impinge directly upon the thermostatic member thereof.

The present invention is directed to a construction by which the.contact. of the hot water with the thermostatic controlling member isprevented.

As showing a specific embodiment of th invention reference is made tothe drawings forming apart of this specification and in which- Figure 1shows aside elevation of the car piping. This includes a pipe leadingfrom the main or engine supply, the thermostatic controlling device, thepipes leading therefrom and returning thereto which connect to theradiator sections and a pipe connecting with the atmosphere whichpermits an escape of excess steam or the suction of air.

Fig. 2 is a side elevation partly in section 2. The steam coming fromthe pipe line 1' must pass by the valve 3 whose position is regulated bythe thermostatic. U-shaped valve changing member 4. the regulating valve3 the steam passes upward through the angle shaped pipe 5 hrough thenozzle 6 thence through the 1n-.

Wardly flaring portion 7 to the radiators ,8

After passing by means of the supply piping 9. of which the flaringportion 7 may be considered a part. It will be apparent that the steampassing through the nozzle 6 and through the restraining portion 7 willcause a decrease of press n'e'within the thermostatic device and anycooler steam returning from the radiator 8 through the pipe 10 will besucked up by and mixed with the steam or higher. temperature which.passing from the nozzle 6 into the restraining portion 7. The waters ofcondensation. that flow from the radiating system through thepipe 10'will pass under and entirely out of contact with the Ushaped-thermostatic member 4 and'out of the overflow 11 which isdirectly connected to the atmosphere.

Sometimes the water of condensation will be spilled backfrom-theradiating system ner that all of'the water passing downwardthrough the vertical opening 12 will fall beyond the U-shapedthermostatic member 4 and therefore not contact therewith.

'From an inspection of Fig. 2 it will be noted the valve 3 is providedwith a stem 14 that is directly connected at 15 to the U- shaped member1.. As this stem extends across and is located directly below the end ofthe vertical opening 12 the condensed waters flowing backward from thepipe 9 will necessarily'contact with said stem and unless there isprovided some means for preventing said ivater from creeping along thisrod or stem l i-it wouldv naturally follow along the same and fromthence drip down upon the thermostatic member 4 thusv affecting saidmember and thereby the position of the valve which is undesirable. Inorder to prevent the water from creeping. along this rod in the mannerabove described there is provided a spring 16 whichv is retaineddirectly under the opening on the rod.

From an inspection of Fig. 3 it will be observed that the thermostaticU-shaped memher 4 is located 23 sufiicient distance above the bottomofthe interiorof the thermostatic device to permit any Water of.condensation which may bereturned to said device through the pipe topass under said meni ber'wlthout actually contacting therewith.

It is obvious that various changes. and modifications may be madewithout depart ingfrom the spirit and scope of myinvenpipe, a nozzle fordirecting steam to said supply pipe and arranged relative to saidpassageway in such a manner as to produce a decrease of pressure withinsaid device,

and thermostatic member being located below said passageway, the saidchamber having therein and connected tothe casing thereof a shieldbetween a terminal of said passageway and the thermostatic member, whichshield is arranged to I prevent the water that passes through thepassageway from contacting with said thermostatic member.

2. A heating system having a radiator line, a nozzle for directing steamto the radiator line, a casing having a chamber and a passageway whichforms a communiv cation between the said chamber and the radiator lineat 'a'place adjacent to the dc;

the nozzle terminatingl static member, and a s i absence liver end. or"the nozzle, 9. thermostatic mem er, in said chamber, the-end of Saidpassageway-which is farthest removed from i above the thermoold on thechamber casing and extending between said last 'mentiene' end of thepassageway and the thermostatic member to prevent the splashing. ofcondensed 'water which passes through the passageway againstthethermostatic member'. vl i 3.. In a thermostatic device for heating, thecombination of a casing having a chamber, a U-shaped thermostatic memberin said chamber, a rod which extends between the ends of saidthermostatic member, said casing being provided with a passa eway lead-I ing to and from the interior 0 the chamber, the rod being locatedbetweena terminal of the'passageway and the curvedpor: tion of theU-shaped thermostatic member, an apron or shield located'between saidterminal and the curved portion of the thermostatic member, to preventfwater entering the chamber through said opening, from engaging thethermostatic member, and means onthe rod to prevent:water that passesthrough said passageway into the chamber from creeping along the rod andthence to thethermostatic member. This specification signed .andwitnessed f this 6th day of November A. D.,.1911. I JOHN E. WARD.

Signed in the presence of--' v Gr. MCGRANN, EDWIN A. PACKARD.

